From: ts <decoux@...>
Date: 2004-12-17T02:45:48+09:00
Subject: Re: Testing global variables for existence?

>>>>> "H" == Hadmut Danisch <x4@danisch.de> writes:

H> How do I test whether the variable has been set without causing
H> ruby -w to print a warning in case it has not been set?

 With defined?

uln% ruby -we '$a = 12 unless defined?($a); p $a'
12
uln% 



Guy Decoux